Xact Soft Flask

The Xact Soft Flask is a reusable gel flask marked in grams of carbs instead of millilitres, built to carry XACT Energy Bulk Gel on long runs and rides. Fill it to your target line and you know exactly how much fuel you are packing.

It suits runners who plan fuelling by carbs per hour and hate doing maths mid-effort. The carb scale is matched to XACT's bulk gel portions, so filling to a line gives you a known number of servings without guessing. Squeeze it like any soft flask and sip your way through the plan.

Fill it from the Xact Energy Fruit Gel Bulk pouch, and Xact suggests pairing two flasks when you need more carbs for a longer day. It is a simple, refillable way to carry Xact's fruit-based gel without a pocket full of wrappers.